{
"papers": [
{
"n": 0,
"doi": "10.18240/ijo.2025.12.03",
"value": "postnatal week 7",
"method": "immunohistochemistry for PV and WFA",
"metric": "Postnatal age when PV+/PNN+ expression reaches adult levels",
"n_analyzed": null,
"ci_or_error": null,
"text_access": "fulltext",
"n_definition": "animals per age group",
"scope_region": "visual cortex",
"study_system": "rat, visual cortex",
"taxonomic_level": "single cell type (PV+)",
"scope_population": "PV-positive interneurons",
"value_source_sentence": "The number of PV-positive neurons and PNNs-surrounded PV neurons in the rat visual cortex increases postnatally and reaches adult levels by postnatal week 7.",
"experimental_conditions": "normal development"
},
{
"n": 0,
"doi": "10.1016/j.celrep.2012.10.003",
"value": "SATB1 required postnatally for PV expression",
"method": "immunohistochemistry, fate mapping",
"metric": "Transcription factor requirement for PV maturation",
"n_analyzed": null,
"ci_or_error": null,
"text_access": "fulltext",
"n_definition": "animals per genotype",
"scope_region": "whole cortex",
"study_system": "mouse, cortex",
"taxonomic_level": "single cell type (PV+)",
"scope_population": "PV-positive interneurons",
"value_source_sentence": "Satb1 mutant cortex showed a dramatic decrease in the number of cells expressing PV, while the number of SST-expressing cells was largely unaffected.",
"experimental_conditions": "Satb1 conditional knockout"
},
{
"n": 0,
"doi": "10.1177/10507256251390868",
"value": "thyroid hormones act as timer for PV maturation",
"method": "thyroid hormone signaling perturbation",
"metric": "Endocrine regulation of PV maturation timing",
"n_analyzed": null,
"ci_or_error": null,
"text_access": "abstract_only",
"n_definition": "animals",
"scope_region": "neocortex",
"study_system": "mouse, neocortex",
"taxonomic_level": "single cell type (PV+)",
"scope_population": "PV-positive interneurons",
"value_source_sentence": "Thyroid Hormones Act as a Timer for the Postnatal Maturation of Parvalbumin Neurons in Mouse Neocortex.",
"experimental_conditions": "thyroid hormone manipulation"
}
],
"comparison_id": "pv-maturation-timeline-across-species",
"comparison_name": "PV Interneuron Postnatal Maturation Timeline Across Species/Conditions",
"comparison_type": "convergent evidence",
"what_it_reveals": "Multiple regulatory mechanisms (intrinsic TFs like SATB1, environmental signals like PNN formation, endocrine factors like thyroid hormones) converge to regulate PV maturation timeline, with different temporal windows for each",
"homogeneity_check": {
"caveats": [
"Visual cortex (rat) vs whole cortex (mouse) vs neocortex (mouse) - different brain regions",
"Rat vs mouse species difference in maturation timeline",
"Different metrics: absolute timing vs TF requirement vs endocrine regulation"
],
"n_definition_uniform": "false",
"scope_region_uniform": "false",
"taxonomic_level_uniform": "true",
"scope_population_uniform": "true"
},
"suggested_plot_type": "timeline"
}